Valve



l 1929- as. DUFFIELD' 1.719.801 VALVE I Filed {day 10, 1926 W INVEN TOR. @0 0 W ATTORNEY.

Patented July 2, 1929.

UNITED STATES PATENT OFFICE.

GEORGE BE'IHUNE DUFFIELD, OE DETROIT, MICHIGAN, ASSIGNOR TO DETROIT LUBRICATOR COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

VALVE.

Application filed May 10, 1926.

My invention relates broadly and generally to new and useful improvements in valves, and while it capable of general application in various types of valves, it will be found particularly applicable and useful in handoperatcd valves of the type used in heating systems for controlling the :flow of the heat ing medium to radiators or other heating elements.

The invention consists in the novel construction of parts and the aggroupment thereof in operative combination, to be more fully described hereinafter, and the novelty of which will be particularly pointed out and distinctly claimed. 1

In the accompanying drawings to be taken as apart of these specifications, I have shown a preferred embodiment of myinvention, and in which drawings Figure l is a vertical. central sectional view illustrating my invention;

Fig. 2 is a detail sectional view showing a construction similar to Fig. 1, but with certain additional features; i

Fig. 3 is a top plan view of the construction shown in Fig. 2;

Fig. i is a detail plan view of a thread member;

Fig. 5 is an edge view of the member shown in Fig. l; i

Fig. 6 is a transverse section through a plateforming one of the elements of my invention, and i i Fig. 7 a perspective view of a valve-carryin or supporting member.

Referring to the drawings by characters of reference 1dr i 'naies generally a valve body or casing, preferably made of suitable cast metal, and of any preferable: design and size to suit it to the purposes for which it is intended. The body 1 is formed with a chamber 2, and at its bottom and side with nipples 3, 4, by means of which the valve may be connected in a pipe line or conduit, and which constitute the inlet to and outlet from the chamber 2. Within the chamber 2 and surrounding the passage through the nipple 3, is an annular ported wall 5 constituting a valve seat. which preferal'ily provided with a ridged or beaded seating face 6 with which a valve header disk cooperates, as will be presently set forth, to regulate flow through. the casing.

The body 1 formed at its upper portion with a hollow neck or nipple extension 7, cy-

Serial No. 107,849.

lindrical in contour and located in axial alinement with the nipple 3 and valve seat 6, heretofore mentioned. The extension 7 is formed on its inner face with a coarse screwthread 8 which is preferably a double thread, for a purpose to behereafter described. The upper end of the extension 7 is closed by a suitable closure, preferably in the form (if a cap or bonnet 9, provided with a depending peripheral flange 10, which is internally threaded, as at 11, onto said extension 7. The bonnet includes a transverse upper Wall 12, and formed integral therewith is an external cylindrical tubular sleeve 13,open at its upper end, and at its base provided with an internal flange 14 surrounding a circular opening 15, said flange having an inwardly and downwardly inclined upper face 15 con stituting a packing seat, and said opening providing for passage of a valve-operating member or stem.

The upper surface of the bonnet is provided with an annular bearing face 16, which is surrounded. by an annular raised bead 0r ledge 17, said face and bead being concentric with the opening 15 heretofore described. The bonnet when screwed into place preferably closely engages the upper edge of the exterision 7, as at 18, so as to make a fluid-tight joint between the body and bonnet.

Within the chamber 2 and above the valve seat is arranged a disk valve comprising a flanged disk holder 19, in whichris seated a valve disk in the form ofa flat ring of any suitable. material. The disk holder is mounted on a carrier 21, including a body 22 projecting through a central opening in the holder 19, and having on its upper end a flange 23, against which the holder is clamped rigidly by a bead 24; on the bod and swaged againstthe under face of the/holder. The holder is provided with a shoulder 25 and a threaded extension QGprojecting through the valve disk, the latter being held in place by awasher 27 engaging said shoulder and clamped in place by a nut 28 threaded on said extension 26. After the nut 28 is in place, the end of the extensioriQG is expanded or headed over, as at 28*, to hold the nut against accidental displacement.

The carrier 21 is provided centrally on its ul ipersface with an integral pin or shank men'iber 29, which projects through an opening 30 in the transverse wall at the lower end of a sleeve 31 constituting a member for. car

.sition.

rying said valve and for connecting the valve to an operating means or member. The end of the pin Within the sleeve is beaded over, as-at 32, so as tooverlie the said lower wall of the sleeve and thereby serve to connect the valve tosaid sleeve. The diameter of the pin is less than that ofthe opening 30, so that the valve will have sufficient lateral play relative to the sleeve to adjust itself tightly to the seat 6.

The sleeve 31 is preferably drawn from sheet-metal, and is generally rectangular in cross-section, both internallyand externally, and at the upper end of the sleeve two of the opposite walls thereof are provided with integral laterally struck lugs or stops The other two opposite side walls of the sleeve terminate in shoulders 33 which lie outside thes'ide edges ofthe stops 33. Arranged on the 'sleeve 31 is a thread member of novel construction, 'consisting'of a central portion orplate 34of sheet-metal, having opposite spaced segmental wings 35 having arcuate outer edges 36. Thesewings 35 are deflected, flexed or twisted relative to the plane of plate 34, so that the said edges 36 constitute a threadbr threads which mesh with the thread or-threads 8 in the extension 7 of the valve body. It willbe understood that these wings areflexed so as to take afiXed or set rigid po- 3 The thread-member is preferably secured inplac'e on the sleeve'31 by forming said member with a central rectangular opening 37, which is passed over said sleeve before said lugs 33 are bent over, and so that the under 'face of said member 34 rests on said shoulders 33. The cars or lugs 33 are then bent outward ontothe upper face of member 34:, so that the latter is rigidly clamped between said lugs andsaid shoulders 33.

1 It Will be seen that rotation of the sleeve and thread member, by virtue of the thread connection with the casing, will act to move the valve toward or away from the valve seat. The thread 8 is preferably of a steep or quick pitch, so as to move the valve the desired distance to and from its seatwith a small number'of rotations of said sleeve 31. The sleeve 3.1.=and member 34 provide an extremely sim- ,ple construction, which is not only highly efficient in operation, but maybe produced at a minimum of labor and expense, inasmuch as they may be made of sheet-metal without machining operations of any kind. The arrange ment also provides for expeditious and secure assembly without special securing devices.

I Means for rotating the sleeve and threadmember in order to move the valve toward and from itsscat, Wlll now de described Extend- .ing centrallythrough the sleeve 13and the said sleeve may slide thereon, and closely litting the sleeve so that the latter will he turned thereby. The stem above the rcclangular part 39 is provided with a cylindrical section 40, which is located in said opening 15 and extends above the flange 14- into and through the sleeve or flange 13, said cylindrical portion being of less diameter than the internal diameter of said sleeve 13. The stem is also provided with a circumferential lateral flan go 41, having upper and lower cone surfaces 4-), .1-3, said flange being located within slccvc lil and spaced from the flange 14:. The stem is rotatable, but is not movable lcngtlnvisc, and in order to prevent endwise movcnicnl upward or outward, the same is provided below the flange 14: with an annular groove 4-1 to receive a snap spring ring 4-5 which is of grcalcr diameter than the opening 15 in said flange.

.Benea'th flange 4-1 and resting on the flange face 15, is a suitable packing washer 1(3 surrounding said stem, and above said flange 11 is a packing washer 4-7, over which is a metallic washer 418. 'llhreadcd, as at 49, on to the sleeve 13, and surrounding the stem, is a cap sleeve or nut 50. having at its upper end an inturned flange 51, between which and said washer 48 is a compression spring 2 which exerts its force expansibly to urge the washer 4:7, packing and stem toward the flange 14, thereby compressing and cxpanding the packing against said tlangc. the flange 41 and inner face of sleeve 13, to form a fluid-tight joint between the stem and bonnet.

The stem may be rotated by any suitable means, for exan'iple, a handle 53, having a reenforcing plate 54 having a central squared opening to receive the squared upper end of the valve stem, the handle being secured in place by a screw 56 passed through the handle, plate 5-1 and threaded into the end of the stem.

I will. now describe an ellicicnt and novel elementfor application to the body, so as to serve as a finishing plate, a dial, or a stopcarricr for carrying a stop or limiting device for the operating member or stem. This element is preferably in the form of a fruslro conical plate 57, preferably of metal, and having a. central opening 58 to receive the sleeve 13, the diameter of said opening being such that the bounding edge or central portion of the plate around the opening is located beneath the lower edge of the cap 50. The conical plate is arranged with the apex or highest point beneath said cap, and the pcripheral or lower edge portion rests on said surface 16 and closely adiacent the 1 ad or ridge 17. The plate is made of a suitable material, rendering it radially flexible or rcsilient, so that when pressure is exerted on its cen't al'portion by screwing the cap down, said plate will be moved or flexed radially into strong frictional engagement with said surface 16, and at the same time will be expanded or flexed outward. so that the peripheral or outside edge will. strongly engage the inner face off said head. By this arrangement the "plate will be positively clamped in position, and when so clamped acts as a positive stop for the downward movementot the cap piece which comes to a lit) fixed stop and cannot be further screwed down once the dish is fastened in place. The construction will be of especial advantage when it is desired to employ a hunting stop for arresting rotation of the valve stem and thereby detern'iiningg; the opening position of the valverelative to its seat. in Figs. 2, 3 and 6 ol' the drawings, the plate 57 is provided witha stopl'ixed thereon, the same preferably consisting oi apost 55.) riveted through an opening in said plate, as at (30, and adapted to be engaged by the lower end of a stop arm (ii lined to the stem, for example by forming said arm with a squared opening 62 tightly fitting the squared portion oi the stem. Thefarm is clamped between the plate 54: and shoulder 54-? on the stem, thereby rigidly connecting the arm to the stem to rotate therewith. It will be seen that by screwingthe cap-piece 50 back to release pressure tlIGI'GOTiEOD the plate, the latter may be rotated to bring the stop post 59 at the desired'position, whereupon by screwing the cap-piece down to clamp the plate in place, as described, the plate will be held rigidly against further rotation and the stop held lixed in adjusted position to limit rotation oi the valvestem. It will be understood that the plate 51 has sailicient rigidity to prevent its being collapsed or deformed when clamped in place, but is sutliciently flexible or resilient radially, that pressure exerted on its centralportion will eiq and it into engagement with the abutment 17 and thatwhen the pressure is relieved will cause it to release from said abutment.

T he construction and ('toii'iljiiinttioii embodying the plate 57 ail'ords a most convenient and eliicient manner of providing a valve with a finishing plate, adding greatly to the pleasing appearance of the valve. It also provides, an ellicient construction whereby such a plate may be employed asa dial-plate or stop-plate flor valves of the type known as fractional valves, wherein it is desirable to provide a plate which will be rotaa ably adjustable relative to the valve stem so as to locate a stop or indication in a desired position relative to a pointer or stop member on the valve stem.

What I claim and desire to secure by Letters Patent oi. the United States is i. In a structure of the character described, a valve body, a alve therein, an operating meml'ier tor the valve, said body havingnn ext ernal stop spaced laterally trom the operating member, a radially flexible element on the body and surrounding the (merating men'iber, and means For flexing said element into engagement with said step.

2. In a structure oi? the character described, a valve body, a valve therein, an operating member for the valve, said body having an external annular abutment concentric with said operating member, a radially tier:- ible element on the body and surri'nuulin the operating member, and means for flexing said element into engagement with said abutment.

3. In a structure of the character de scribed, a valve body, a valve therein, an op crating member for the valve, said body having an external transverse bearing lace and an annular abutment bounding said 'lace and concentric with said operating member, a radially 'llzxible elementon the body and surroumling the operating inen'iber, and means tor clamping said element against said face and flexing it radially into engagement with said abutment.

l. In a structure of the character described, a valve body, a valve therein, an operating-member for the valve, said body having an external transverse bearing face and an annular alnitnu-ait bounding said face and concentric with said operating member, a coneshaped radially flexible elementon the body and surrounding the operating men'iber and having its circumicrential edge portion on said face, and means for exerting pressure on. the central portion of said element to flex the same into engagement with said abutment and clamp the same against said face.

5. In a structure of the character described, a valve body, a alve therein, an opcrating member for the \ailve, said body having an external transverse bearing face and an annular abutment bounding said time and concentric with said operatiinr member, a cone-shamed radially flexible element on the body and surromutling the operating member and having its eireuii'rl'crential. edge portion on said taco, and means :lor everting Jnressure on the central. portion oi said e ement to flex the same and move the periphery oi. said elen'ient into engagenunit with said alnitment and clamp the same against said face. a

(3.. Ina structure of the character de scribed, a valve body, a valve therein, a rot atable operating member for the valve. a'radially iiexible elementon the body and surrounding the operating men'iber, a stop on said element and a stop on the operating meml'aer cooperating with the stop on the elen'ient to limit rotation of said operatin her, and means to flex said element i gagement with a part on said body w hercl 1y said element is held inposition.

7. In a structure oi the character described, a valve body, a valve therein, a roltil) ill) tatable operating member for the valve, a 'adially flexible element on the body and surrounding the operating member and rotatable about the same, a stop on said ele ment and a stop on theoperati-ng member adapted to engage the stop on the element to limit rotation of said operating member, and means to flexsaid element into engagement with a part on said body whereby said element is held in position.

8.111 a structure of the character described, a valve body, a valve therein, an operating member for the valve, a 'adi ally flexible element on the body and surrounding the operating member, and an element threaded on said body and operable on said element to flex the same into tight engagement with said valve body.

9. In a structure of the character described, a valve body, a valve therein, an operating member for the valve, a radially flexible element on the body and surrounding the operating member, and packing means for said operating member and including a clamping member adapted to flex said ele- 11'1G11l3 into tight engagement with said valve body.

10. In a structure of the character described, a valve body,-a valve therein, anopcrating member for the valve, a radially flexible element on thelbody and surrounding the tion on said face, and packing means for said operating member, said packing means including a clamping member threaded onihe body and operable on said element to flex the same into engagement with said abutment and to clamp the same against said face.

12; In a structure of the character described, a valve body, a valve therein, an operating member for the valve, a bonnet for said 'body, said bonnet having an external transverse bearing face and an annular abutment bounding said face and concentric wit-h said operating member, a. cone-shaped radiallv flexible element on the bonnet and surrounding the operating member, said element having its circumferential edge portion on said face, and means for exerting pressure on the central portion of said element to flex the same into engagement with said abutment and clamp the same against said face.

13. A valve of the character described comprising a casing having a port and an internal thread, a valve in the casing and cooper-able with said port, a. reciprocable and rotatable member carrying said valve. and a member fixed on said reciproc-able and rotatable member to rotate therewith and consisting of a plate having its periphery deflected relative thereto to constitute a. thread member engaging said internal thread, and means to rotate said members to move the valve relative to said port.

14. A valve of the character described comprising a casing having a port and an internal thread, a valve in the casing and cooperable with said port, a member connected to said valve to move the same relative to said port, said member comprising a. plate having oppositely disposed segmental wings deflected relative to the plate to constitute thrca d nlen'ibers engaging said internal thread, and means to rotate said member to thereby move the valve relative to said port.

15. A valve of the character described comprising a. casing having a port and an internal thread, a. valve in the casing and coopciaible with said port. a member connected to said valve to move the same relative to said port, said member comprising a plate having oppositely disposed segmental wings deflected relative to the plate to constitute thread members engaging said internal thread. and means havinga sliding connection with said member for rotating the same.

16. A valve oi? the character described comprising a casing having a port and an internal thread, a valve in the casing and cooperable with said port, a member connected to said valve to move the same relative to said port, said member comprising a plate having oppositely disposed segmental wings deflected relative to the plate to constitute thread members engaging said internal thread, and an operating stem having a sliding connection with said member and operable to rotate said member to thereby move the valve relative to said port.

17. A valve 01 the character described comprising a. casing having a port and an internal thread, a valve in the casing and cooperahle with said port, a reciprocable and rotatable member"carrying said valve, and a member fixed on said reciprocable and rotatable member to rotate therewith and consisting of a plate having segmental wings deflected relative to the plate to constitute thread-members engaging said internal thread, and means to rotate said members to move the valve relative to said port.

18. A valve of the character described comprising a casing having a port and an internal thread, a valve in the casing and cooperable wit-h said port, a reciprocable and rota-table member carrying said valve,.a.nd a member fixed on said reciproc-able and rotatable memher to rotate therewith and consisting of a plate having oppositely disposed segniental wings deflected relative to the plate to con stitute thread-members engaging said internal thread, and means to rot-ate said members to move the valve relative to said port. 19. A valve of the character described comprising a valve basing having a port and an internal thread, a valve in the casing and cooperable with said port, a. reciprocable and rotatable sleeve member supporting. said valve, a member .iixed on said sleeve men' ber and consisting of a plate having oppositely disposed segmental. wings deflected relative to the plate to constitute thread-members engaging said internal thread, and means slida-bly engaging said sleeve member and operable to rotate the same and said thread-members to move the valve relative to said port.

20. A valve of the character described comprising a valve casing having a port and an internal thread, a valve in the 'asing and cooperable with said port, a reel p rocable and rotatable sleeve member supporting said valve, a member fixed on said sleeve member and consisting of a plate having oppi'isitely disposed segmental wings deflected relative to the plate to constitute threadniembers engaging said internal thread, and an operating stem having a slidable connection with said sleeve member and operable to rotate said sleeve member and thread-menders to therebymove the valve relative to said port.

21. A valve of the character described comprising a valve casing having a port and an internal thread, a valve in the casing and cooperable with said port, a reciprocable and rotatable sleeve member supporting said valve and having a shoulder and securing means, a inen'iber fixed on said sleeve member by said shoulder and securing means, said member consisting of a central plate having op .msitely disposed segmental wings deflected relative to the plate to constitute thread-members en.- gaging said internal thread, and means slidably engaging said sleeve member and ope/r able to rotate the same and said thread memhers to move the valve relative to said port.

22. A valve of the character described, com-. prising a casing having a port and a hollow extension, said extension having an internal thread coaxial with said port, an operating stem rotatably supported and projecting into said extension, a valve within. the casing and cooperable with said port, a said valve and carrying the same, a plate rigid. with said member and having oppositely dispos d segmental wings deflected relatively to the plate to constitute thread members cooper able with said internal thread, means depending from said stem and having operative connection with said member to rotate the same to move said valve to and from said port.

23. A valve of the character described, comprising a casing having a port and an openended hollow extension in axial alinement with said port, said extension. having an internal thread, a. bonnet closing said extension above said thread and having a sleeve on its upper side, packing in said. sleeve, a rotatable stem fixed in said packing against longitudinal movement and projecting through said bonnet, resilient means to hold said packing in said sleeve, a thread member comprising a plate having oppositely disposed wings deiiected relative to the plate, said wings having areuate l)(-]'l] )l).0l'l6S engaging said internal thread, a valve to cooperate with said. port and supported by said thread. member, and means depending tron'i said stem within said casing to rotate said thread member whereby said valve may be moved to and from said port.

24. A valve of the character (:lescribed, comprising a hollow *a-sing having a port, a valve in said casing ada 'ited to open and close said port, cooperable relatively movable threadedly-engaged men'ibers in said casing, one of said members comprising a hollow cylindrical member having an internal thread, the other of said members con'i nrising a plate having oppositely disposed segmental wings deflected relative to the plate to constitute thread-engaging means, one of said members being fixed against l.'QCll)l'\')U?ll lUll in said casing and the other of said mcn'ibers being fixed to said valve, means to rotate one of said members whereby relative rotation of said nieinbers will move said valve to or from its port.

In testimony whereof I have hereunto signed my name.

GEORGE BETHUNE DUFFlELD.

member fixed to tit) 

